geotools.org SSL certificate renewal failed (letsencrypt)

[strk]

Something wrong was reported upon letsencrypt cert renewal for docs.geotools.org and geotools.org (still needed?):

 - The following errors were reported by the server:

   Domain: docs.geotools.org
   Type:   unauthorized
   Detail: 140.211.15.6: Invalid response from
   https://docs.geotools.org/.well-known/acme-challenge/Xeu03iLu0Mv7QrxIV4lhGrfd0OzfJokvUepDF3CjmUk:
   404

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address.
 - The following errors were reported by the server:

   Domain: www.geotools.org
   Type:   unauthorized
   Detail: 140.211.15.6: Invalid response from
   http://www.geotools.org/.well-known/acme-challenge/SBaEF5syGR0AgPBjr3BI7VsiQrXqrXgFWhi10JqWQUo:
   404

   Domain: geotools.org
   Type:   unauthorized
   Detail: 140.211.15.6: Invalid response from
   http://geotools.org/.well-known/acme-challenge/DKElh5cEHfZ7ygGm0KStuvz2_3pWnJCdRJ994kyICLQ:
   404

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address.